
Siemens 3RK3251-1AA10
MPN3RK3251-1AA10
NRND
SIRIUS, expansion module 3RK32 for modular Safety system 3RK3 4/8 F-RO, 24 V DC/2 A can be parameterized via MSS ES 45 mm overall width screw terminal up to SIL3 (IEC 61508) up to Performance Level E (ISO 13849-1) without connection cable
$712.00Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product brand name | SIRIUS |
| Product design / configuration | 4/8 F-RO |
Safety ratings
| Parameter | Value |
|---|---|
| Safety integrity level (IEC 61508) | 3 |
| Category (EN ISO 13849-1) | 4 |
| PFHd, high demand rate (EN 62061) | 7.15E-9 1/h |
Monitoring & inputs
| Parameter | Value |
|---|---|
| Protective door monitoring | No |
| Monitored start-up | No |
Electrical
| Parameter | Value |
|---|---|
| Rated insulation voltage | 300 V |
| Rated surge voltage withstand | 4 000 V |
Connection
| Parameter | Value |
|---|---|
| Type of electrical connection | screw-type terminals |
Mechanical
| Parameter | Value |
|---|---|
| Touch protection against electric shock | finger-safe |
| Fastening method | DIN rail |
| Mounting position | vertical |
| Width | 45 mm |
| Height | 111 mm |
| Depth | 124 mm |
Environmental
| Parameter | Value |
|---|---|
| Relative humidity, operating | 10 ... 95 % |
| Installation altitude, max. | 2 000 m |
| Shock resistance | 15g / 11 ms |
| Vibration resistance (IEC 60068-2-6) | 5 ... 500 Hz: 0.75 mm |
MPN
3RK3251-1AA10